<TITLE>prob021: crossfigures</TITLE>
<HR><!------------------------------------------------------------------------>
<CENTER>
<H1>prob021: crossfigures</H1>

<TABLE>
<TR> <TD> proposed by
     <TD ALIGN=LEFT> <A HREF="http://www.cs.york.ac.uk/~tw">
          <B>Toby Walsh</B></A> 
          <ADDRESS><a href="mailto:tw@cs.york.ac.uk">
          tw@cs.york.ac.uk</a></ADDRESS>
</TABLE>
</CENTER>
<HR><!------------------------------------------------------------------------>
<H3> Specification </H3>

<TT>
Crossfigures are the numerical equivalent of crosswords.
You have a grid and some clues with numerical answers to
place on this grid. Clues come in several different forms
(for example: Across 1. 25 across times two, 2. five dozen, 
5. a square number, 10. prime, 14. 29 across times 21 down ...). 


</TT>


<HR><!------------------------------------------------------------------------>

<UL>

 <A HREF="../../index.html"> Back</A> to CSPLib home page.


